Be careful: if you find a blank piece of paper in your mailbox, it could mean this
The blank piece of paper is not the only warning sign. The police regularly warn about various markings used by burglary gangs:
Symbols drawn with chalk (crosses, circles, triangles) on the sidewalk, wall or facade
Stickers from unknown locksmiths on the mailbox
Objects that have been moved , such as stones in front of the gate
If you discover such signs: photograph them for documentation, then remove them immediately to show that the home is inhabited.
This is also a good time to review your burglary protection. For example, an older front door can be replaced with a security door with a certified lock.
